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ST10F272M Datasheet(PDF) 36 Page - STMicroelectronics

No. de pieza ST10F272M
Descripción Electrónicos  16-bit MCU with 256 Kbyte Flash memory and 20 Kbyte RAM
PDF  175 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST10F272M Datasheet(HTML) 36 Page - STMicroelectronics

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Internal Flash memory
ST10F272M
36/176
5.5.3
Flash non-volatile access protection register 0 (FNVAPR0)
5.5.4
Flash non-volatile access protection register 1 low (FNVAPR1L)
Table 19.
Flash non-volatile write protection I register
Bit
Name
Function
7:0
W0P[7:0]
Write Protection Bank 0 / Sectors 7-0 (IFlash)
These bits, if programmed at 0, disable any write access to the sectors of Bank 0
(IFlash)
FNVAPR0 (0x08 DFB8)
NVR
Delivery value: ACFFh
15
14
13
12
11
10
987
65432
10
Reserved
DBGP ACCP
-RW
RW
Table 20.
Flash non-volatile access protection register 0
Bit
Name
Function
0ACCP
Access Protection
This bit, if programmed at 0, disables any access (read/write) to data mapped
inside IFlash Module address space, unless the current instruction is fetched from
IFlash.
1DBGP
Debug Protection
This bit, if erased at 1, can be used to by-pass all the protections using the Debug
features through the Test Interface. If programmed at 0, on the contrary, all the
debug features, the Test Interface and all the Flash Test modes are disabled. Even
STMicroelectronics will not be able to access the device to run any eventual failure
analysis.
FNVAPR1L (0x08 DFBC)
NVR
Delivery value: FFFFh
15
14
13
12
11
10
987
65432
10
PDS15 PDS14 PDS13 PDS12 PDS11 PDS10 PDS9 PDS8 PDS7 PDS6 PDS5 PDS4 PDS3 PDS2 PDS1 PDS0
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Table 21.
Flash non-volatile access protection register 1 low
Bit
Name
Function
15:0 PDS[15:0]
Protections Disable 15-0
If bit PDSx is programmed at 0 and bit PENx is erased at 1, the action of bit ACCP
is disabled. Bit PDS0 can be programmed at 0 only if both bits DBGP and ACCP
have already been programmed at 0. Bit PDSx can be programmed at 0 only if bit
PENx-1 has already been programmed at 0.



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